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53213531995 = 513818669723
BaseRepresentation
bin110001100011110001…
…100000111101011011
312002100112122111210101
4301203301200331123
51332440131010440
640240154400231
73562452362461
oct614361407533
9162315574711
1053213531995
1120627719218
12a391130077
135030768950
14280b43c831
1515b6a6769a
hexc63c60f5b

53213531995 has 8 divisors (see below), whose sum is σ = 68768256816. Its totient is φ = 39296146656.

The previous prime is 53213531993. The next prime is 53213532011. The reversal of 53213531995 is 59913531235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53213531995 - 21 = 53213531993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53213531993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409334797 + ... + 409334926.

It is an arithmetic number, because the mean of its divisors is an integer number (8596032102).

Almost surely, 253213531995 is an apocalyptic number.

53213531995 is a deficient number, since it is larger than the sum of its proper divisors (15554724821).

53213531995 is a wasteful number, since it uses less digits than its factorization.

53213531995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818669741.

The product of its digits is 546750, while the sum is 46.

The spelling of 53213531995 in words is "fifty-three billion, two hundred thirteen million, five hundred thirty-one thousand, nine hundred ninety-five".

Divisors: 1 5 13 65 818669723 4093348615 10642706399 53213531995